REDIS INSTALLATION

The goal is to install Redis as user redis into centos 7 Environment or make a default installation into Centos 7

The first 2 steps are the same for both solution,

Step 3 is an example of custom installation made from me

Step 4 is an example of default installation

Pre-requisites

Install the following packages,

yum install tcl wget gcc make

Step 1- Downloading Redis

At the time of writing this tutorial, Redis 6.2.6 is the latest version. So to download the redis 6.2.6, open your terminal & execute the following command,

https://github.com/redis/redis/archive/7.0.4.tar.gz

Next, we will extract the downloaded tar package,

tar zxvf 7.0.4.tar.gz

Step 2- Compiling & Installing Redis

Now that we have extracted the package, we will compile & install Redis. Firstly, open the extracted folder,

cd redis-7.0.4

& then goto folder ‘deps’,

cd deps

Now, we will compile the packages by executing the following commands,

make hiredis lua jemalloc linenoise

make geohash-int

Next, we will move back to the main directory i.e. ‘redis-7.0.4’

cd ../

& will run ‘make’ & ‘make install’ commands

make

make install

Once these commands have been executed, we will move onto to installing the ‘init’ script.

Step 3- Installing init scripting custom

create a user redis

useradd -m -U -d /var/lib/redis -s /sbin/nologin redis

then setup systemctl

vi /usr/lib/systemd/system/redis_6379.service

this is my redis.conf

them start redis

systemctl enable redis_6379
systemctl start redis_6379
systemctl statusredis_6379
RESULT OF SERVICE STATUS
redis_6379.service — Redis persistent key-value database
 Loaded: loaded (/usr/lib/systemd/system/redis_6379.service; enabled; vendor preset: disabled)
 Active: active (running) since Wed 2022–09–14 13:14:00 EDT; 22min ago
 Main PID: 31529 (redis-server)
 CGroup: /system.slice/redis_6379.service
 └─31529 /usr/local/bin/redis-server 0.0.0.0:6379

Step 4- Installing init scripting default

Init script will setup a redis service with port number, config file, log file & a data directory. To run run init script,

cd utils\

& run the install_server.sh script,

./install_server.sh

We will now be asked for some information regarding Redis server, as shown below.

if you get this error

This systems seems to use systemd. Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!

edit vi ./install_server.sh

comment it and try again !!!

#_pid_1_exe="$(readlink -f /proc/1/exe)"
#if [ "${_pid_1_exe##*/}" = systemd ]
#then
#       echo "This systems seems to use systemd."
#       echo "Please take a look at the provided example service unit files in this directory, and adapt and install them. Sorry!"
#       exit 1
#fi```

after that, you start Redis with

service redis_6379 start

read the link below

https://www.trendmicro.com/en_us/research/20/d/exposed-redis-instances-abused-for-remote-code-execution-cryptocurrency-mining.html

That’s all any question let me know